I'm guessing rather it has something to do with you being a lazy anti-intellectual hack. If you were to spend two seconds beyond the time it took you to look up Hannah Arendt on wikipedia, you might find that Banksy's statement is pretty damn straightforward.

"Doing loop-de-loops around Hannah Arendt's theoretical reckoning of the Nazis' rise to power isn't really how we want to spend our afternoon, but we're guessing it has something to do with Banksy not really caring much about what he's actually saying."